Event organiser Andrew Evans said: "Bob Geldof appeared to be enjoying himself immensely on stage and confirmed that to me after he completed his set.

"He told me that the Sesiwn is something very special and was extremely pleased to have had the opportunity to take part."

There was disappointment among many music fans after Breton harpist Alan Stivell had to pull out. He was unable to perform after some of his equipment failed to arrive on a flight from Paris.

Mr Evans said Stivell's non-appearance was not the fault of the musician or the festival.

He said: "A crew from Sesiwn Fawr went to Manchester Airport to pick up Stivell, his group and their equipment. But it became apparent that there was a problem with some of the equipment having not been loaded on to the plane.

"Despite the setback, Alan travelled to Dolgellau and was quite happy to go ahead with other equipment but his management team refused. We are very disappointed that Alan did not perform."